High-Selectivity CO2 Mixture Separations by a Guanylated Polymer of Intrinsic Microporosity (PIM-G) Membrane
Name
2024_SK_PIM-G MS.pdf
Description
Accepted version
Size
1.27 MB
Format
Adobe PDF
Checksum (MD5)
5c08337019ceb56b13c406dc03767d70
Author(s)
Kaser, Samuel J
Dean, Pablo
Jean-Baptiste, Philippe
Mattewal, Simar Kaur
Joo, Taigyu
Yeo, Jing Ying
Smith, Zachary P
Date Issued
October 28, 2024
Journal
Macromolecules
Publisher
American Chemical Society
Citation
High-Selectivity CO2 Mixture Separations by a Guanylated Polymer of Intrinsic Microporosity (PIM-G) Membrane. Samuel J. Kaser, Pablo Dean, Philippe Jean-Baptiste, Simar Kaur Mattewal, Taigyu Joo, Jing Ying Yeo, and Zachary P. Smith. Macromolecules 2024 57 (21), 10023-10031.
Version
Author's final manuscript
Abstract
Membrane technology has the potential to replace thermal methods for gas separation, resulting in significant energy savings. However, materials with better combinations of permeability and selectivity are needed to fulfill industrial requirements. In this work, we functionalize a polymer of intrinsic microporosity with a high CO2 affinity guanidinium moiety to produce a highly CO2-permselective ionic polymer (PIM-G). Permeability–selectivity performance is compared under pure- and mixed-gas conditions for CO2/CH4, CO2/N2, and CO2/O2 gas pairs. In addition, counteranion identities are modified along the halide series (F–, Cl–, Br–, and I–) to optimize separation performance, with larger halides found to improve the CO2 permselectivity without a commensurate drop in the CO2 permeability.
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/acs.macromol.4c01434
